import zipfile,urllib2,tempfile,sys

data=[[] for _ in range(20)]

for i in range(1,21):
    response = urllib2.urlopen('http://yukicoder.me/problems/no/%d/testcase.zip'%i)
    temp = tempfile.TemporaryFile()
    temp.write(response.read())
    temp.seek(0)
    with zipfile.ZipFile(temp) as zf:
        for zi in zf.infolist():
            data[i-1].append(zf.read(zi)[:20])
    temp.close()

n = sys.stdin.read()[:20]
print " ".join([str(i) for i in range(1,21) if any([n==j for j in data[i-1]])])